Update conditional-code.md

[yatinmistry]

String parameter are not parsed to object

// Check if the property exists in the object.
if ( stuffToDo[ foo ] ) {
// This code won't run.
stuffToDo[ foo ]();
} else {
// This code will run.
stuffToDo[ "default" ]();
}

[mgol]

String parameter are not parsed to object

I don't understand what you mean, can you elaborate?

[yatinmistry]

When i run this code i gives me error.
ReferenceError: foo is not defined
I passed it as string then it works. if something i have done wrong to execute then let me know.

    var stuffToDo = {
        "bar": function() {
            alert( "the value was bar -- yay!" );
        },
        "baz": function() {
            alert( "boo baz :(" );
        },
        "default": function() {
            alert( "everything else is just ok" );
        }
    };
    // Check if the property exists in the object.
    if ( stuffToDo[ foo ] ) {

// This code won't run.
stuffToDo foo ;
} else {
// This code will run.
stuffToDo "default" ;
}

[yatinmistry]

You can run this script. It will gives errror.

[mgol]

You need to assign something to the variable foo before this code. The code with "foo" instead of foo wouldn't make sense, it would never go inside the if block.

[mgol]

I see what can be causing confusion here. The comments This code won't run. and This code will run. suggest the value of foo is already known which is not true (and even then, such comments wouldn't appear in the code). This is confusing people, there have already been a couple of issues/PRs/comments related to that.

@scottgonzalez I found the comments were added in commit a9711df and have been kept for a couple of months already. This commit doesn't make any sense, can we just revert it?